Distribution of Chinese adults ≥15 years old by selected demographic characteristics
| Demographic characteristics | Weighted | Un-weighted Number of adults | ||
| Percentage | (95% CI) | Number of adults (in Thousands) | ||
| Overall | 100 | 1 156 987 | 19 376 | |
| Gender | ||||
| Male | 50.6 | (49.6, 51.7) | 585 988 | 9 109 |
| Female | 49.4 | (48.3, 50.4) | 570 999 | 10 267 |
| Age (year) | ||||
| 15–24 | 13.9 | (12.6, 15.3) | 160 774 | 930 |
| 25–44 | 37.8 | (36.3, 39.3) | 436 993 | 5 128 |
| 45–64 | 34.7 | (33.2, 36.1) | 400 930 | 8 652 |
| 65+ | 13.7 | (12.8, 14.6) | 158 289 | 4 666 |
| Residence | ||||
| Urban | 59.9 | (53.7, 65.7) | 692 544 | 11 023 |
| Rural | 40.1 | (34.3, 46.3) | 464 443 | 8 353 |
| Educational level | ||||
| Elementary school and below | 32.6 | (30.3, 34.8) | 323 930 | 7 531 |
| Middle school | 34.0 | (32.4, 35.6) | 338 205 | 5 745 |
| High school graduate | 16.4 | (15.3, 17.7) | 163 644 | 2 721 |
| College and above | 17.0 | (14.8, 19.5) | 169 266 | 2 430 |
| Smoking status | ||||
| Never smoker | 66.7 | (65.5, 68.0) | 771 994 | 12 863 |
| Current smoker | 26.6 | (25.4, 27.8) | 307 580 | 4 959 |
| Daily smoker | 23.2 | (22.0, 24.5) | 268 904 | 4 384 |
| Occasionally smoker | 3.3 | (2.9, 3.8) | 38 677 | 575 |
| Former smoker | 6.7 | (6.1, 7.3) | 77 390 | 1 553 |
| Income(yuan) | ||||
| <30 000 | 41.1 | (37.5, 44.8) | 448 062 | 8 971 |
| 30 000–49999 | 23.9 | (21.9, 25.9) | 260 457 | 4 225 |
| 50 000–99999 | 22.3 | (20.1, 24.6) | 243 479 | 3 566 |
| 100 000 and above | 12.6 | (10.3, 14.9) | 137 711 | 1 746 |